Rotary fluid-pressure motor.



W. 1". SULLIVAN & A. M. WASBAUER.

ROTARY FLUID PRESSURE MOTOR.

APPLICATION FILED FE1-3.18, 1913.

Patented 110111913.

aoLUMBIA PLANOGRAPH CD.. WASHINGTON. D.

W. F. SULLIVAN n A. M. WASBAUEIL- ROTARY FLUID PRESSURE MoToR APPLICATION FILED PEBJB, 1913.

3.. mm 1E .im v; dH @u w m .3- 00 M 2 $0/ Z 2 2 Ml C 7 2k uw? 00V f/v\ 04%2 #Zw f O (l) N 5, \\7 M 7. LN m. w 1,

IYTNESSES:

u ma r 1D E nis M .mi o MW n m5. 4 mFMw d e mr WHJ COLUMBIA PLANOGRAPH co W. F. SULLIVAN n A. M. WASBAUER.

ROTARY FLUID PRESSURE MOTOR.

APPLICATION YILBD FBB.18, 1913.

1,077,568. Patented Nov.4,1913.

s SHEETS-SHEET a.

INVENTOHS WW Afro/mfr COLUMBIA PLANOGRAPH c0wASHxNc\-mN. D. c,

. l FFQFQ.

WILLIAM F. SULLIVAN AND ALFRED IVI. XVASBAUER, 0F PATERSON, NEW JERSEY, ASSIGNORS OF ONE-EIG-I-j-.TH T0 ISIDORE WASBAUER, OF PATERSON, NEW' JERSEY.

ROTARY FLUIILPRESSURE MOTOR.

Specification of Letters Patent.

Patented Nov. e, 1913.

To all whom t may concern Be it known that we, WILLIAM' F. SULLI- VAN, a citizen ot the United States, and AL- FRED M. WASBAUER, a citizen of France, residing at Paterson, in the county of Passaic and State ot New Jersey, have invented certain new and useful Improvements in Rotary Fluid-Pressure Motors, or' which the following is speciiication.

The motor which is the subject. or" the present invention is designed more particularly for operating a steering gear, a. rotor being provided which makes less than a complete revolution and then automatically stops, the extent ot' travel ot' the rotor being controlled by a valve and an arrangement of ports in the rotor as will be hereinafter described in detail and claimed. Provision is also made for connecting the motor to the parts to be operated.

Invorder that the invention may be fully understood, reference is had to the accompanying drawings, in which- Figure 1 is an elevation of the motor with one of the cylinder. heads removed. Fig. 2 is a vertical section on the line 2 2 of Fig. 1. Fig. 3 is a horizontal section on the line 3-3 of Fig. 1. Fig. 4 is a view similar to Fig. l showing the controlling valve shifted to admit fluid pressure into the cylinder to rotate the rotor counterclockwise. Fig. 5 is a face View of the controlling valve. Fig. 6 is a view similar to Fig. 1 showing al moditication. Fig. 7 is a. vertical section on the line 7 7 of Fig. 6. Fig. 8 is a face view of the controlling valve shown in Figs. 6 and 7. Fig. 9 is a face view of another modified form of controlling valve.

In the drawings 10 denotes a cylinder which incloses a rotor 11, having radially projecting piston wings 12. The cylinder is divided into three chambers 13 inwhich the piston wings work, each chamber containing one piston wing. It will be understood, of course, that the number of piston wings and corresponding chambers may be varied according to the work i'or which the motor is designed. The chambers are formed by abutments 14: extending radially between the cylinder wall and the periphery of the rotor, the inner ends of the abutments being provided with grooves for a packing 15,' in order` to prevent the luid pressure from escaping between the chambers. The

' outer ends of the piston wings are also pro vided with a packing 16 so that a fluid tight joint is had between the same and the cylinder wall. The rotor and the piston wings extend entirely across the spaceV between heads 17 and 18 closing the respective ends of the cylinder, and the ends ofthe wings are provided with a packing'` 19. The ends of the rotor have annulargrooves to receive a packing 20,. vThe packings 19 and 2Ov are provided to prevent escape of the fluid pressure between theends of the rotor and wings, Vvand the cylinder heads.

That end of the rotor 1l, which is next to the cylinder head 17, has a hub extension 2l passing through a central opening in said head. The hub extension has a central hollow which is continued through thecenter ot the rotor to the opposite end thereof. In this hollow is mounted a hollow valve stem 22 which projects at oneend from the hub extension and has on the outside thereof side openings or ports 28, establishing communication between the hollow 23a of the stem and the external atmosphere, and serving as exhaustoutlet ports as will be presently described. The other end of the valve stem has a collar 9A which is countersunk in the corresponding end of the rotor, and carries pins 25 designed to enter holes in a rotary valve 26, which seats against said end of the rotor, said pins thus serving to provide a driving connectionv between the stem and the valve. This driving connection prevents the stein from binding the valve and the latter from resting unevenly on its seat. The cylinder head 18 has a recess 27 to accommodate the valve and forms an inlet chamber having a suitable supply connection 28.

The valve 26 is a circular disk having an outstanding marginal flange 29 on the side which seats on the end of the rotor 11. On the same side ot the disk are three partitions 30 which extend inward from the marginal flange and form with the latter three chambers 3l, which are spaced from each other. 'Ihe space inclosed by the walls of the chambers forms an exhaust cavity 32, the same being located at the center of the disk and having three radially extending branches or passages 33. The exhaust cavity 32 opens to the hollow 23a of the valve stem, the same forming an exhaust passage, the outlet of which is through the ports 23.

In the valve disk 26 are admission ports 34E ria extending entirely therethrough from one side to the other. Three pairs of admission ports are providedcorrespon-ding to the number of piston `Wings 12 and chambers 13. The ports open at one end into the inlety chamber 2T, and at their other ends the pairs of ports open respectively into the chambers 31 adjacent to the partitions 30.

In the end ot the rotor 11 on which the valve S26 seats are inlet ports 35, the inner ends ot which` are deflected so as to open through the periphery7 of the rotor into the chambers 13. These ports are located the saine radial` distance 'from the center et the rotor as the portsV 311, and are therefore adapted to be lapped. by the latter. lThree `pairs of ports 35 are provided, one pair tor each chamber 13, and the members ot said pair opening into the chamber on opposite valve is moved to the right the reverse acsides ot' the piston Wing 12. n

The portsV 35' are so positioned with respect to the ports 311, that when the rotor 11 is at rest, the ports 34 slightly lap the ports 35. Pressure is therefore admitted into the chambers 13 on both sides ot the piston Wings l2, and the latter are thus balanced and held stationary. At the same time the exhaust. cavity`32 and its branches 33 are covered the;` end' ot the rotor, said branches lying between Vthe right and lett onesot` the members ot the respective pairs of ports 34. 1t' noiv the valve 2G is turned to the lett, pressure is admitted into the chambers 13 to the right ot each piston Wing 12 and the rotor is caused to move countercloclrivise, or in the same direct-ion the valve Was moved, thusfollovving the valve and stopping Wherever the valve has stopped. At the same time the valve is moved to the lett to' admit pressure into the chambers 13 to' the right of the piston Wings 12, the lett hand admission ports3 are closed and the eiihaustpassages 33 come over the ports t'tlielelt'of thepiston Wings.V The pressurein the'chambers 13 to the lett oit the pist-on vWings then escapes through the pas sages 33 into the cavity 32, and thence escapes into the passage 232L and finally eX- hausts through the ports 23.

It Will be seen from the foregoing that Whenthe valve 26 is moved to the lett., the

three ports 35, tothe right of the piston Wings 12, vbecome intake ports and the other three ports 35, to the lett of the piston Wings, become exhaust ports. When the tintakes place. l/Vhen the motor is at rest; equalpressure is admitted into all chambers l3nt Ithe""cylinder.- lt will also he understood that the cylinder l0 can be made vvith'one chamber or With any number, ac-

C-rcyin ofthgyyark Vrequired of the motor. Iii-"the presentiinstancetherotor Willv have a movefilent*ed'uivalentA` to lsubstaiitially 90", and byprovidingthreerhambers anda corJ harness responding number of pistons, the Whole motor is reduced in size since there is obtained three times the povver which would be obtained Were the cylinder made with but one chamber.

The motor is designed primarily for operating a steering,` gear, although not limited to such use, a suitable driving connes tion being provided which can be connected to the hub extension 21.

through the cylinder head 17. The valve 26 No packing is required where the hub extension passes is designed to be operated by hand, a suitable operating device being` connected to the projecting portion ot the valve stem 22.

rthe structure herein described produces a simple, e'llicient and powerful motor which automatically stops after havingl rotated a` predetermined distance.

The preferred embodiment. of the invention has been shovvn but it will be evident that various changes in the structure may bel made Without a departure from the spirit and scope ot the invention as hereinafter claimed.

Figs. 6 and 7 show a rotor 36 having one piston vving 37, and an end recess 33 in which the controlling valve 39 seats. By thus recessing the end of the rotor and seat-` ing the valve in the recess, there is a saving in space. The controlling valve has a sin- `le radial portion 40 provided with an en` haust cavity 41 similar to the exhaust cavity 33 oit the first described valve, and iii the center ot the valve is an exhaust cavity l2 which is in communication with the cavity al and corresponds to the exhaust cavity 32` ot the first described valve. The diameter ot the end recess 33 in which the valve 39 seats is equal to the diameter osaid valve plus its extension 110. Thus a portion ot the` recess is unoccupied by the valve and` through this space the pressure is admitted.

Fig. 9 shows a cont-rolling valve 13 simi-1 i lll() lar to the last described valve 39 designed for a rotor havingthree piston Wings similar to the lirst. described structure.

corresponding to the extensions 10.

Both of the tvvo last described controlling valves operate in the same manner as thel first described valve,

I claim:

l. il rotary fluid pressure motor comprisa ing` an iiiclosing chamber, a rotor having` a radial piston Wing,` Working in the cham-1` ber, and end'ports opening into'the chamber` In `this case the valve has three radial extensions 114i,

iis

iso

radial piston wing working in the chamber, and end ports opening into the chamber on opposite sides of the piston wing, a rotatable valve seating on the ported end of the rotor, said valve normally uncovering both end ports of the rotor, and also provided .with an exhaust passage, an inlet chamber in which the valve is located, and an operating stem connected to the valve, said stem passing through. the center' of the rotor and being provided with an exhaust outlet in communication with the exhaust passage of the valve.

A rotary fluid pressure motor comprising an inclosing chamber, a rotor having a hub extension at one end projecting from the chamber', a radial piston wing carried by the rotor and working in the chamber, said rotor also having end ports opening into the chamber on opposite sides of the piston wing, a rotatable valve seating on the ported end of the rotor, said valve normally uncovering both end ports of the rotor, and also provided with an exhaust passage.l and an inlet chamber in which the valve is located. l

il. A rotary fluid pressure motor comprising an inclosing chamber, a rotor having a hub extension at one end projecting Jfrom the chamber, a radial piston wing carried by the rotor and working in the chamber, said rotor also having end ports opening' into the chamber on opposite sides of the piston wing, a rotatable valve seating on the ported end of the rotor, said valve normally uncovering both end ports of the rotor, and also provided with an exhaust passage, an inlet chamber in which the valve is located, and an operating stem connected to the valve, said stem passing through the rotor and the hub extension and projecting from the latter, and having an exhaust outlet in communication with the exhaust passage of the valve.

5. A rotary fluid pressure motor comprising a cylinder, radial abutments in the cylinder, a rotor in the cylinder and having radial piston wings working in the cylinder space between the abutments, said rotor also having end ports opening into the cylinder space on opposite sides of the pistons, a rotatable valve seating on the ported end of the rotor, said valve normally uncovering respectively the end ports of the rotor, and also provided with exhaust passages, and an inlet chamber in which the valve is located.

6. A rotary fluid pressure motor comprising a cylinder. heads closing the ends thereof, one of said heads having an inlet chamber, radial abutments in the cylinder, a rotor in the cylinder and having radial piston wings working in the cylinder space between the abutments, said rotor also having end ports opening into the cylinder space on opposite sides of the piston wings, and a rotatable valve located in the aforesaid inlet chamber and seating on the ported end of the rotor, said valve normally uncovering respectively the end ports of the rotor, and also provided with exhaust passages.

7. A. rotary fluid pressure motor comprising a cylinder, heads closing the ends thereof', radial abutments in the cylinder, a rotor in the cylinder and having radial piston wings working in the cylinder space between the abutments, said rotor havingahub extension at one end passing through the corresponding cylinder head, the other cylinder head having an inlet chamber, and the corresponding end of the rotor having ports which open into the cylinder space on opposite sides of the piston wings, and a rotatable,

valve located in the aforesaid inlet chamber and seating on the ported end of the rotor, said valve normally uncovering respectively the end ports of the rotor, and also provided with exhaust passages.

8. A. rotary fluid pressure motor comprisin g a cylinder, heads closing the ends thereof, radial abutments in the cylinder, a rotor in the cylinder and having radial piston wings working in the cylinder space between the abutments, said rotor having a hub extension at one end passing through the corresponding cylinder head, the other cylinder' head having an inlet chamber, and the corresponding end of the rotor having ports which open into the cylinder space on opposite sides of the piston wings, and a rotatable valve located in the aforesaid inlet chamber and seating on the ported end of the rotor, said valve normally uncovering respectively the end ports of the rotor, and also provided with exhaust passages, and an operating stem connected te the valve, said stem passing through the rotor and the hub extension and projecting from the latter, and having an exhaust outlet in communication with the exhaust passage of the valve.

9. A rotary fluid pressure motor comprising a cylinder, radial abutments in the cylinder, a rotor in the cylinder and having radial piston wings working in the cylinder space between the abutments, said rotor also having end ports opening into the cylinder space on opposite sides of the pistons, a rotatable valve seating on the ported end of the rotor, said valve normally uncovering respectively the end ports of' the rotor, and also provided with exhaust passages, an inlet chamber in which the valve is located, and an operating stem connected to the valve, said stem passing through the center of the rotor and being provided with an exhaust outlet in communication with the exhaust passage of the valve.

l0. A rotary fluid pressure motor comprising a cylinder, radial abutments in the cylinder, a rotor inthe cylinder and having radial piston wings working in the cylinder spacebetvveeii the abutments, said rotor also having end ports opening into the cylinder space on opposite sides of the pistons, arotatable valve comprising a disk seating on the ported end of the rotor and having chambers on the side which engages said rotor end, from which chambers admission ports extends through the disk to the other side thereof, said. Ports normally communicating respectively With the end ports of the rotor, said disk on the saine side as the chambers also having a central exhaust cavity and passages radiating therefrom, and an inlet chamber in which the valve is located.

ll. A` rotary'fluid pressure motor comprising a cylinder, radial abutments in the cylinder, a rotor in the cylinder and having adial piston Wings working in the cylinder space between the abutments, said rotor also having1 end ports opening into the cylinder space on opposite sides of the pistons, a rotatable valve comprising' a disk seating on the ported end of the rotor and having chambers on the side which engages said rotor end, from which chambers admission ports extend through the disk to the other` side thereof, said ports normally communi- Copies of this patent may be obtained for tive cents each, by addressing the Commissioner of ZPatents` eating,` respectively with the end ports of the rotor, said disk on the same side as the chambers also having a central exhaust cavity and passages radiating therefrom, an

inlet chamber in which the valve is located, c

and an operating stem connected to the valve, said stem passing through the centers of the rotor and beingl provided With an eX- y liaust outlet in communication with the aforesaid exhaust cavity.

12. il rotary Huid pressure motor come i M prising an iiiclosing chamber, a rotor having; a radial piston Wing Working);r 11i the chamber, and an end recess with portsopen# mg into the chamber on opposite sides of the` piston wing, a rotatable valve seating inv said recess and normally uncovering both ports, and also provided with an exhaust passage, and an inlet chamber in which the valve is located.

ln testimony7 whereof We aiiix our signa` tures in presence of two Witnesses. 

